Four new species of Caenis and a new subspecies of Afrocaenis major are described from Ethiopia: Afrocaenis major ginchica ssp. n. (imagines and larvae), Caenis gretathunbergae sp. n. (imagines and larvae), Caenis oromo sp. n. (larvae), Caenis grafi sp. n. (larvae) and Caenis afrocaenoides sp. n. (imagines), as well as the larval stages of the formerly described Caenis nervulosa Malzacher, 1990. Additionally, a few males of the Palaearctic species Caenis horaria (Linnaeus, 1758) are recorded for the Afrotropical Region. A larval key to the five Ethiopian species with known larvae is provided.

The following new species for the listed countries and islands are described and illustrated: Tetraulacus buyan sp. n. (Bali), Thyreocephalus lucidus sp. n. (Sulawesi), T. ternatensis sp. n. (Ternate Island), Atopolinus celatus sp. n. (Thailand), A. lucidus sp. n. (Thailand). Ulisseus dispilus (Erichson, 1839) is recorded from Kalimantan for the first time; Thyreocephalus honkongensis (Redtenbacher, 1868) is recorded from Bali for the first time.

New polymorphic species of the genus Menimus Sharp, 1876 (Diaperinae Latreille, 1802, Gnathidiini Gebien, 1921, Gnathidiina Gebien, 1921) from Borneo and Sumatra are described: M. burut sp. n., M. crockeri sp. n., M. dasun sp. n., M. dayak sp. n., M. grimmi sp. n., M. jacobsoni sp. n., M. kadazan sp. n., M. kinabalucus sp. n., M. loebli sp. n., M. matangicus sp. n., M. merkli sp. n., M. punggulicus sp. n., M. sabahicus sp. n., M. sarawakicus sp. n. A new synonym is proposed: Menimus seriepunctatus Gebien, 1927 (Menimus malayicus Schawaller, 2016 syn. n.). A lectotype is designated for Menimus seriepunctatus Gebien, 1927. Menimus burut sp. n. and Menimus sabahicus sp. n. are the first known species with 9-segmented antennae, whereas Menimus matangicus sp. n. completely lacks eyes. An identification key is compiled for all 16 species so far known from Borneo and Sumatra. The high morphological plasticity of the epigean species of Menimus should be re-examined in a more comprehensive study of all Gnathidiini, not only with morphological but also with molecular data.

Nesocaedius borneensis sp. n. (Tenebrioninae Latreille, 1802: Opatrini Brullé, 1832) from Borneo is described. For some species already cited in a previously published checklist, exact data are given for Borneo for the first time. New locality data are provided for rarely found species.

The bull shark (Carcharhinus leucas Valenciennes, 1839) is a large, primarily coastally distributed shark famous for its ability to penetrate far into freshwater bodies in tropical, subtropical, and warm-temperate climates. It is a cosmopolitan species with a geographical range that includes the coastlines of all major ocean basins (Atlantic Ocean, Indian Ocean, Pacific Ocean). As a consequence, freshwater occurrences of C. leucas are possible everywhere inside its geographic range. Carcharhinus leucas is a fully euryhaline, amphidromous species and possibly the widest-ranging of all freshwater tolerating elasmobranchs. This species is found not only in river systems with sea access that are not interrupted by human impediments but in hypersaline lakes as well. Rivers and estuaries are believed to be important nursery grounds for C. leucas, as suggested by observations of pregnant females in estuaries and neonates with umbilical scars in rivers and river mouths. Due to the physical capability of this species to enter riverine systems, the documentation of its occurrence in fresh and brackish water is essential for future conservation plans, fishery inspections, and scientific studies that focus on the link between low salinity habitats, shark nurseries, and feeding areas. The author's review of the available literature on C. leucas revealed the absence of a comprehensive overview of fresh and brackish water localities (rivers and associated lakes, estuaries) with C. leucas records. The purpose of this literature review is to provide a global list of rivers, river systems, lakes, estuaries, and lagoons with records and reports of this species, including a link to the used references as a base for regional, national, and international conservation strategies. Therefore, the objective of this work is to present lists of fresh and brackish water habitats with records of C. leucas as the result of an extensive literature review and analysis of databases. This survey also took into account estuaries and lagoons, regarding their function as important nursery grounds for C. leucas. The analysis of references included is not only from the scientific literature, but also includes semi-scientific references and the common press if reliable. The result of 415 global fresh and brackish water localities with evidence of C. leucas highlights the importance of these habitats for the reproduction of this species. Moreover, gaps in available distribution maps are critically discussed as well as interpretations and conclusions made regarding possible reasons for the distribution range of C. leucas, which can be interpreted as the result of geographic circumstances, but also as a result of the current state of knowledge about the distribution of this species. The results of the examination of available references were used to build a reliable and updated distribution map for C. leucas, which is also presented here.

Dryophilus forticornis Abeille de Perrin, 1875 (Coleoptera: Ptinidae) is excluded from the faunas of Italy and Croatia, from where it was erroneously reported in the past.